#!/usr/bin/env python3

import os
import pathlib
import re
import requests
import stat
import sys
import shutil
import subprocess
import vagrant
import hashlib
import yaml
import json
import logging
from clint.textui import progress
from optparse import OptionParser
import fdroidserver.tail
import fdroidserver.vmtools


parser = OptionParser()
parser.add_option('-v', '--verbose', action="count", dest='verbosity', default=1,
                  help="Spew out even more information than normal")
parser.add_option('-q', action='store_const', const=0, dest='verbosity')
parser.add_option("-c", "--clean", action="store_true", default=False,
                  help="Build from scratch, rather than attempting to update the existing server")
parser.add_option('--skip-cache-update', action="store_true", default=False,
                  help="""Skip downloading and checking cache."""
                       """This assumes that the cache is already downloaded completely.""")
parser.add_option('--keep-box-file', action="store_true", default=False,
                  help="""Box file will not be deleted after adding it to box storage"""
                       """ (KVM-only).""")
options, args = parser.parse_args()

logger = logging.getLogger('fdroidserver-makebuildserver')
if options.verbosity >= 2:
    logging.basicConfig(format='%(message)s', level=logging.DEBUG)
    logger.setLevel(logging.DEBUG)
elif options.verbosity == 1:
    logging.basicConfig(format='%(message)s', level=logging.INFO)
    logger.setLevel(logging.INFO)
elif options.verbosity <= 0:
    logging.basicConfig(format='%(message)s', level=logging.WARNING)
    logger.setLevel(logging.WARNING)


if not os.path.exists('makebuildserver') and not os.path.exists('buildserver'):
    logger.critical('This must be run as ./makebuildserver in fdroidserver.git!')
    sys.exit(1)

tail = None

# set up default config
cachedir = os.path.join(os.getenv('HOME'), '.cache', 'fdroidserver')
logger.debug('cachedir set to: %s', cachedir)

config = {
    'basebox': 'jessie64',
    'baseboxurl': [
        pathlib.Path(os.path.join(cachedir, 'jessie64.box')).as_uri()
    ],
    'debian_mirror': 'http://http.debian.net/debian/',
    'apt_package_cache': False,
    'copy_caches_from_host': False,
    'boot_timeout': 600,
    'cachedir': cachedir,
    'cpus': 1,
    'memory': 2048,
    'hwvirtex': 'off',
    'vm_provider': 'virtualbox',
}

if os.path.isfile('/usr/bin/systemd-detect-virt'):
    try:
        virt = subprocess.check_output('/usr/bin/systemd-detect-virt').strip().decode('utf-8')
    except subprocess.CalledProcessError as e:
        virt = 'none'
    if virt == 'qemu' or virt == 'kvm' or virt == 'bochs':
        logger.info('Running in a VM guest, defaulting to QEMU/KVM via libvirt')
        config['vm_provider'] = 'libvirt'
    elif virt != 'none':
        logger.info('Running in an unsupported VM guest (%s)!', virt)
    logger.debug('detected virt: %s', virt)

# load config file, if present
if os.path.exists('makebuildserver.config.py'):
    exec(compile(open('makebuildserver.config.py').read(), 'makebuildserver.config.py', 'exec'), config)
elif os.path.exists('makebs.config.py'):
    # this is the old name for the config file
    exec(compile(open('makebs.config.py').read(), 'makebs.config.py', 'exec'), config)
if '__builtins__' in config:
    del(config['__builtins__'])  # added by compile/exec
logger.debug("makebuildserver.config.py parsed -> %s", json.dumps(config, indent=4, sort_keys=True))

# Update cached files.
cachedir = config['cachedir']
if not os.path.exists(cachedir):
    os.makedirs(cachedir, 0o755)
    logger.debug('created cachedir %s because it did not exists.', cachedir)

if config['vm_provider'] == 'libvirt':
    tmp = cachedir
    while tmp != '/':
        mode = os.stat(tmp).st_mode
        if not (stat.S_IXUSR & mode and stat.S_IXGRP & mode and stat.S_IXOTH & mode):
            logger.critical('ERROR: %s will not be accessible to the VM!  To fix, run:', tmp)
            logger.critical('  chmod a+X %s', tmp)
            sys.exit(1)
        tmp = os.path.dirname(tmp)
    logger.debug('cache dir %s is accessible for libvirt vm.', cachedir)

if config['apt_package_cache']:
    config['aptcachedir'] = cachedir + '/apt/archives'
    logger.debug('aptcachedir is set to %s', config['aptcachedir'])
    aptcachelock = os.path.join(config['aptcachedir'], 'lock')
    if os.path.isfile(aptcachelock):
        logger.info('apt cache dir is locked, removing lock')
        os.remove(aptcachelock)
    aptcachepartial = os.path.join(config['aptcachedir'], 'partial')
    if os.path.isdir(aptcachepartial):
        logger.info('removing partial downloads from apt cache dir')
        shutil.rmtree(aptcachepartial)

cachefiles = [
    # Don't update sdk tools beyond 25.2.5.
    # Support for android update project has been removed and there is no replacement.
    # Until we find a solution for that we need to stay at this revision.
    ('https://dl.google.com/android/repository/tools_r25.2.5-linux.zip',
     '577516819c8b5fae680f049d39014ff1ba4af870b687cab10595783e6f22d33e'),
    ('https://dl.google.com/android/repository/android_m2repository_r47.zip',
     'a3f91808dce50c1717737de90c18479ed3a78b147e06985247d138e7ab5123d0'),
    ('https://dl.google.com/android/repository/android-1.5_r04-linux.zip',
     '85b6c8f9797e56aa415d3a282428bb640c96b0acb17c11d41621bb2a5302fe64'),
    ('https://dl.google.com/android/repository/android-1.6_r03-linux.zip',
     'a8c4e3b32269c6b04c2adeabd112fce42f292dab1a40ef3b08ea7d4212be0df4'),
    ('https://dl.google.com/android/repository/android-2.0_r01-linux.zip',
     'e70e2151b49613f23f40828c771ab85e241eed361cab037c6312df77f2612f0a'),
    ('https://dl.google.com/android/repository/android-2.0.1_r01-linux.zip',
     'f47b46177b17f6368461f85bc2a27d0d2c437929f588ea27105712bc3185f664'),
    ('https://dl.google.com/android/repository/android-2.1_r03.zip',
     'b9cc140a9b879586181b22cfc7d4aa18b979251e16e9b17771c5d0acb71ba940'),
    ('https://dl.google.com/android/repository/android-2.2_r03.zip',
     '7c9ea1bd7cb225504bd085d7c93ae27d52bd88d29b621d28108f82fef68177c0'),
    ('https://dl.google.com/android/repository/android-2.3.1_r02.zip',
     'b2ab4896d0a4857e4f688f69eb08b0e1a8074709d4445a92a83ece7ec7cd198c'),
    ('https://dl.google.com/android/repository/android-2.3.3_r02.zip',
     '54bdb0f1ca06ba5747061ddeea20f431af72c448334fd4d3d7f84ea2ccd29fea'),
    ('https://dl.google.com/android/repository/android-3.0_r02.zip',
     '1cacae7b6e1b5a5d73c06f5d29d2ea92d16674df8fd5507681290e77d1647a1c'),
    ('https://dl.google.com/android/repository/android-3.1_r03.zip',
     '7570c86a86488a146aa2141a65a24d81800959c1907ff4f1d2c13bbafab230c5'),
    ('https://dl.google.com/android/repository/android-3.2_r01.zip',
     'ff6b26ad34d7060a72ba504b0314cef8ba3138005561705adec5ad470a073d9b'),
    ('https://dl.google.com/android/repository/android-14_r04.zip',
     'da1af15c77ba41d062eb6d0ef5921cc424ab6167587033b830609d65f04802b6'),
    ('https://dl.google.com/android/repository/android-15_r05.zip',
     '5bc1f93aae86b4336ffc4cae9eb8ec41a9a8fd677582dd86a9629798f019bed9'),
    ('https://dl.google.com/android/repository/android-16_r05.zip',
     'fd7f269a423d1f1d079eabf9f918ceab49108702a1c6bb2589d57c23393503d3'),
    ('https://dl.google.com/android/repository/android-17_r03.zip',
     'b66e73fb2639f8c916fde4369aa29012a5c531e156dbb205fe3788fe998fbbe8'),
    ('https://dl.google.com/android/repository/android-18_r03.zip',
     '166ae9cf299747a5faa8f04168f0ee47cd7466a975d8b44acaaa62a43e767568'),
    ('https://dl.google.com/android/repository/android-19_r04.zip',
     '5efc3a3a682c1d49128daddb6716c433edf16e63349f32959b6207524ac04039'),
    ('https://dl.google.com/android/repository/android-20_r02.zip',
     'ef08c453e16ab6e656cf5d9413ef61cb8c650607d33b24ee4ce08dafdfe965a7'),
    ('https://dl.google.com/android/repository/android-21_r02.zip',
     'a76cd7ad3080ac6ce9f037cb935b399a1bad396c0605d4ff42f693695f1dcefe'),
    ('https://dl.google.com/android/repository/android-22_r02.zip',
     '45eb581bbe53c9256f34c26b2cea919543c0079140897ac721cf88c0b9f6789e'),
    ('https://dl.google.com/android/repository/platform-23_r03.zip',
     '4b4bcddead3319708275c54c76294707bfaa953d767e34f1a5b599f3edd0076c'),
    ('https://dl.google.com/android/repository/platform-24_r02.zip',
     'f268f5945c6ece7ea95c1c252067280854d2a20da924e22ae4720287df8bdbc9'),
    ('https://dl.google.com/android/repository/platform-25_r03.zip',
     '9b742d34590fe73fb7229e34835ecffb1846ca389d9f924f0b2a37de525dc6b8'),
    ('https://dl.google.com/android/repository/platform-26_r02.zip',
     '2aafa7d19c5e9c4b643ee6ade3d85ef89dc2f79e8383efdb9baf7fddad74b52a'),
    # Download platform-27 from F-Droid's server because google has two different files for that filename.
    # For reproducibility and general sanity we chose the newer one from Nov 17.
    # For reference the older one from Nov 8 has a sha256sum of cbba6f8fcf025e1b533326746763aa1d6e2cf4001b1b441602bb44d253bc49ac
    ('https://verification.f-droid.org/build-metadata/96ddff1a5034fcc4340f2d482635eeaccaa6707b6b0f82d26d1435476a2f52e5/platform-27_r01.zip',
     '96ddff1a5034fcc4340f2d482635eeaccaa6707b6b0f82d26d1435476a2f52e5'),
    ('https://dl.google.com/android/repository/build-tools_r17-linux.zip',
     '4c8444972343a19045236f6924bd7f12046287c70dace96ab88b2159c8ec0e74'),
    ('https://dl.google.com/android/repository/build-tools_r18.0.1-linux.zip',
     'a9b7b1bdfd864780fdd03fa1683f3fe712a4276cf200646833808cb9159bafc0'),
    ('https://dl.google.com/android/repository/build-tools_r18.1-linux.zip',
     '0753606738f31cc346426db1d46b7d021bc1bdaff63085f9ee9d278ee054d3c9'),
    ('https://dl.google.com/android/repository/build-tools_r18.1.1-linux.zip',
     '7e4ed326b53078f4f23276ddab52c400011f7593dfbb6508c0a6671954dba8b0'),
    ('https://dl.google.com/android/repository/build-tools_r19-linux.zip',
     '9442e1c5212ed594e344a231fa93e7a017a5ef8cc661117011f1d3142eca7acc'),
    ('https://dl.google.com/android/repository/build-tools_r19.0.1-linux.zip',
     'b068edaff05c3253a63e9c8f0e1786429799b7e4b01514a847a8b291beb9232e'),
    ('https://dl.google.com/android/repository/build-tools_r19.0.2-linux.zip',
     '06124fad0d4bde21191240d61df2059a8546c085064a9a57d024c36fa2c9bebb'),
    ('https://dl.google.com/android/repository/build-tools_r19.0.3-linux.zip',
     'bc9b3db0de4a3e233a170274293359051a758f1e3f0d0d852ff4ad6d90d0a794'),
    ('https://dl.google.com/android/repository/build-tools_r19.1-linux.zip',
     '3833b409f78c002a83244e220be380ea6fa44d604e0d47de4b7e5daefe7cd3f4'),
    ('https://dl.google.com/android/repository/build-tools_r20-linux.zip',
     '296e09d62095d80e6eaa06a64cfa4c6f9f317c2d67ad8da6514523ec66f5c871'),
    ('https://dl.google.com/android/repository/build-tools_r21-linux.zip',
     '12b818f38fe1b68091b94545988317438efbf41eb61fd36b72cd79f536044065'),
    ('https://dl.google.com/android/repository/build-tools_r21.0.1-linux.zip',
     'a8922e80d3dd0cf6df14b29a7862448fa111b48086c639168d4b18c92431f559'),
    ('https://dl.google.com/android/repository/build-tools_r21.0.2-linux.zip',
     '859b17a6b65d063dfd86c163489b736b12bdeecd9173fdddb3e9f32e0fe584b7'),
    ('https://dl.google.com/android/repository/build-tools_r21.1-linux.zip',
     '022a85b92360272379b2f04b8a4d727e754dbe7eb8ab5a9568190e33e480d8f1'),
    ('https://dl.google.com/android/repository/build-tools_r21.1.1-linux.zip',
     '29b612484de6b5cde0df6de655e413f7611b0557b440538397afa69b557e2f08'),
    ('https://dl.google.com/android/repository/build-tools_r21.1.2-linux.zip',
     '3f88efc2d5316fb73f547f35b472610eed5e6f3f56762750ddad1c7d1d81660d'),
    ('https://dl.google.com/android/repository/build-tools_r22-linux.zip',
     '061c021243f04c80c19568a6e3a027c00d8e269c9311d7bf07fced60fbde7bd5'),
    ('https://dl.google.com/android/repository/build-tools_r22.0.1-linux.zip',
     '91e5524bf227aad1135ddd10905518ac49f74797d33d48920dcf8364b9fde214'),
    ('https://dl.google.com/android/repository/build-tools_r23-linux.zip',
     '56bf4fc6c43638c55fef4a0937bad38281945725459841879b436c6922df786c'),
    ('https://dl.google.com/android/repository/build-tools_r23.0.1-linux.zip',
     'e56b3ef7b760ad06a7cee9b2d52ba7f43133dcecedfa5357f8845b3a80aeeecf'),
    ('https://dl.google.com/android/repository/build-tools_r23.0.2-linux.zip',
     '82754f551a6e36eaf516fbdd00c95ff0ccd19f81d1e134125b6ac4916f7ed9b6'),
    ('https://dl.google.com/android/repository/build-tools_r23.0.3-linux.zip',
     'd961663d4a9e128841751c0156548a347c882c081c83942e53788d8949bf34e1'),
    ('https://dl.google.com/android/repository/build-tools_r24-linux.zip',
     'b4871f357224c5f660fd2bbee04d8c7d1c187eeddfd9702cc84503529e3b3724'),
    ('https://dl.google.com/android/repository/build-tools_r24.0.1-linux.zip',
     'a38ac637db357a31e33e38248399cb0edcc15040dca041370da38b6daf50c84d'),
    ('https://dl.google.com/android/repository/build-tools_r24.0.2-linux.zip',
     '924e29b8a189afbd119d44eae450fc0c9f197ed6f835df223931e45007987d95'),
    ('https://dl.google.com/android/repository/build-tools_r24.0.3-linux.zip',
     'f2c02eb1d7e41ce314b5dac50440e7595380c4dd45b41ea1d7b0f86e49516927'),
    ('https://dl.google.com/android/repository/build-tools_r25-linux.zip',
     '74eb6931fd7a56859bd8e35d8d73ca8fe7ba6bfd4b7ffe560fe58b7354f2e3aa'),
    ('https://dl.google.com/android/repository/build-tools_r25.0.1-linux.zip',
     '671b4e00f5b986c7355507c7024b725a4b4cadf11ca61fa5b1334ec6ea57d94f'),
    ('https://dl.google.com/android/repository/build-tools_r25.0.2-linux.zip',
     '1d7ac9b6def16fb0254ec23c135c02dd9f6908073352a20315a017e4b2a904b0'),
    ('https://dl.google.com/android/repository/build-tools_r25.0.3-linux.zip',
     '152c1b187947edd10c65af8b279d40321ecc106106323e53df3608e578042d65'),
    ('https://dl.google.com/android/repository/build-tools_r26-linux.zip',
     '7422682f92fb471d4aad4c053c9982a9a623377f9d5e4de7a73cd44ebf2f3c61'),
    ('https://dl.google.com/android/repository/build-tools_r26.0.1-linux.zip',
     'c8617f25a7de2aeb9ddcacf1aeb413e053d5ed5ef4a3f31fe0ce21d4428ee0ea'),
    ('https://dl.google.com/android/repository/build-tools_r26.0.2-linux.zip',
     'a752849fac85c4a7f9ea165ec8f367b0ebe8bbf6a1f33fc8605342be004231ce'),
    ('https://dl.google.com/android/repository/build-tools_r26.0.3-linux.zip',
     '5c250c602b1657c4c70a6078925e9e01e5714526b707309bc1c708be6137a4db'),
    ('https://dl.google.com/android/repository/build-tools_r27-linux.zip',
     '53d3322774a0bf229b372c0288108b4bfa27d74725fce8f0a3393e8df6b9ef22'),
    ('https://dl.google.com/android/repository/build-tools_r27.0.1-linux.zip',
     '2e8e0946e93af50667ae02ef200e81c1ac2269b59f14955397245e9e441e8b1e'),
    ('https://dl.google.com/android/repository/build-tools_r27.0.2-linux.zip',
     'e73674e065a93ffb05c30a15c8021c0d72ea7c3c206eb9020eb93e49e42ce851'),
    ('https://dl.google.com/android/repository/build-tools_r27.0.3-linux.zip',
     '5e1f4fc5203f13de120c56f9cc103bb2e57d940959547506196ab10ddc9e6b97'),
    # the binaries that Google uses are here:
    # https://android.googlesource.com/platform/tools/external/gradle/+/studio-1.5/
    ('https://services.gradle.org/distributions/gradle-1.4-bin.zip',
     'cd99e85fbcd0ae8b99e81c9992a2f10cceb7b5f009c3720ef3a0078f4f92e94e'),
    ('https://services.gradle.org/distributions/gradle-1.6-bin.zip',
     'de3e89d2113923dcc2e0def62d69be0947ceac910abd38b75ec333230183fac4'),
    ('https://services.gradle.org/distributions/gradle-1.7-bin.zip',
     '360c97d51621b5a1ecf66748c718594e5f790ae4fbc1499543e0c006033c9d30'),
    ('https://services.gradle.org/distributions/gradle-1.8-bin.zip',
     'a342bbfa15fd18e2482287da4959588f45a41b60910970a16e6d97959aea5703'),
    ('https://services.gradle.org/distributions/gradle-1.9-bin.zip',
     '097ddc2bcbc9da2bb08cbf6bf8079585e35ad088bafd42e8716bc96405db98e9'),
    ('https://services.gradle.org/distributions/gradle-1.10-bin.zip',
     '6e6db4fc595f27ceda059d23693b6f6848583950606112b37dfd0e97a0a0a4fe'),
    ('https://services.gradle.org/distributions/gradle-1.11-bin.zip',
     '07e235df824964f0e19e73ea2327ce345c44bcd06d44a0123d29ab287fc34091'),
    ('https://services.gradle.org/distributions/gradle-1.12-bin.zip',
     '8734b13a401f4311ee418173ed6ca8662d2b0a535be8ff2a43ecb1c13cd406ea'),
    ('https://services.gradle.org/distributions/gradle-2.1-bin.zip',
     '3eee4f9ea2ab0221b89f8e4747a96d4554d00ae46d8d633f11cfda60988bf878'),
    ('https://services.gradle.org/distributions/gradle-2.2-bin.zip',
     '91e5655fe11ef414449f218c4fa2985b3a49b7903c57556da109c84fa26e1dfb'),
    ('https://services.gradle.org/distributions/gradle-2.2.1-bin.zip',
     '420aa50738299327b611c10b8304b749e8d3a579407ee9e755b15921d95ff418'),
    ('https://services.gradle.org/distributions/gradle-2.3-bin.zip',
     '010dd9f31849abc3d5644e282943b1c1c355f8e2635c5789833979ce590a3774'),
    ('https://services.gradle.org/distributions/gradle-2.4-bin.zip',
     'c4eaecc621a81f567ded1aede4a5ddb281cc02a03a6a87c4f5502add8fc2f16f'),
    ('https://services.gradle.org/distributions/gradle-2.5-bin.zip',
     '3f953e0cb14bb3f9ebbe11946e84071547bf5dfd575d90cfe9cc4e788da38555'),
    ('https://services.gradle.org/distributions/gradle-2.6-bin.zip',
     '18a98c560af231dfa0d3f8e0802c20103ae986f12428bb0a6f5396e8f14e9c83'),
    ('https://services.gradle.org/distributions/gradle-2.7-bin.zip',
     'cde43b90945b5304c43ee36e58aab4cc6fb3a3d5f9bd9449bb1709a68371cb06'),
    ('https://services.gradle.org/distributions/gradle-2.8-bin.zip',
     'a88db9c2f104defdaa8011c58cf6cda6c114298ae3695ecfb8beb30da3a903cb'),
    ('https://services.gradle.org/distributions/gradle-2.9-bin.zip',
     'c9159ec4362284c0a38d73237e224deae6139cbde0db4f0f44e1c7691dd3de2f'),
    ('https://services.gradle.org/distributions/gradle-2.10-bin.zip',
     '66406247f745fc6f05ab382d3f8d3e120c339f34ef54b86f6dc5f6efc18fbb13'),
    ('https://services.gradle.org/distributions/gradle-2.11-bin.zip',
     '8d7437082356c9fd6309a4479c8db307673965546daea445c6c72759cd6b1ed6'),
    ('https://services.gradle.org/distributions/gradle-2.12-bin.zip',
     'e77064981906cd0476ff1e0de3e6fef747bd18e140960f1915cca8ff6c33ab5c'),
    ('https://services.gradle.org/distributions/gradle-2.13-bin.zip',
     '0f665ec6a5a67865faf7ba0d825afb19c26705ea0597cec80dd191b0f2cbb664'),
    ('https://services.gradle.org/distributions/gradle-2.14-bin.zip',
     '993b4f33b652c689e9721917d8e021cab6bbd3eae81b39ab2fd46fdb19a928d5'),
    ('https://services.gradle.org/distributions/gradle-2.14.1-bin.zip',
     'cfc61eda71f2d12a572822644ce13d2919407595c2aec3e3566d2aab6f97ef39'),
    ('https://services.gradle.org/distributions/gradle-3.0-bin.zip',
     '39c906941a474444afbddc38144ed44166825acb0a57b0551dddb04bbf157f80'),
    ('https://services.gradle.org/distributions/gradle-3.1-bin.zip',
     'c7de3442432253525902f7e8d7eac8b5fd6ce1623f96d76916af6d0e383010fc'),
    ('https://services.gradle.org/distributions/gradle-3.2-bin.zip',
     '5321b36837226dc0377047a328f12010f42c7bf88ee4a3b1cee0c11040082935'),
    ('https://services.gradle.org/distributions/gradle-3.2.1-bin.zip',
     '9843a3654d3e57dce54db06d05f18b664b95c22bf90c6becccb61fc63ce60689'),
    ('https://services.gradle.org/distributions/gradle-3.3-bin.zip',
     'c58650c278d8cf0696cab65108ae3c8d95eea9c1938e0eb8b997095d5ca9a292'),
    ('https://services.gradle.org/distributions/gradle-3.4-bin.zip',
     '72d0cd4dcdd5e3be165eb7cd7bbd25cf8968baf400323d9ab1bba622c3f72205'),
    ('https://services.gradle.org/distributions/gradle-3.4.1-bin.zip',
     'db1db193d479cc1202be843f17e4526660cfb0b21b57d62f3a87f88c878af9b2'),
    ('https://services.gradle.org/distributions/gradle-3.5-bin.zip',
     '0b7450798c190ff76b9f9a3d02e18b33d94553f708ebc08ebe09bdf99111d110'),
    ('https://services.gradle.org/distributions/gradle-3.5.1-bin.zip',
     '8dce35f52d4c7b4a4946df73aa2830e76ba7148850753d8b5e94c5dc325ceef8'),
    ('https://services.gradle.org/distributions/gradle-4.0-bin.zip',
     '56bd2dde29ba2a93903c557da1745cafd72cdd8b6b0b83c05a40ed7896b79dfe'),
    ('https://services.gradle.org/distributions/gradle-4.0.1-bin.zip',
     'd717e46200d1359893f891dab047fdab98784143ac76861b53c50dbd03b44fd4'),
    ('https://services.gradle.org/distributions/gradle-4.0.2-bin.zip',
     '79ac421342bd11f6a4f404e0988baa9c1f5fabf07e3c6fa65b0c15c1c31dda22'),
    ('https://services.gradle.org/distributions/gradle-4.1-bin.zip',
     'd55dfa9cfb5a3da86a1c9e75bb0b9507f9a8c8c100793ccec7beb6e259f9ed43'),
    ('https://services.gradle.org/distributions/gradle-4.2-bin.zip',
     '515dd63d32e55a9c05667809c5e40a947529de3054444ad274b3b75af5582eae'),
    ('https://downloads.gradle.org/distributions/gradle-4.2.1-bin.zip',
     'b551cc04f2ca51c78dd14edb060621f0e5439bdfafa6fd167032a09ac708fbc0'),
    ('https://downloads.gradle.org/distributions/gradle-4.3-bin.zip',
     '8dcbf44eef92575b475dcb1ce12b5f19d38dc79e84c662670248dc8b8247654c'),
    ('https://downloads.gradle.org/distributions/gradle-4.3.1-bin.zip',
     '15ebe098ce0392a2d06d252bff24143cc88c4e963346582c8d88814758d93ac7'),
    ('https://downloads.gradle.org/distributions/gradle-4.4-bin.zip',
     'fa4873ae2c7f5e8c02ec6948ba95848cedced6134772a0169718eadcb39e0a2f'),
    ('https://downloads.gradle.org/distributions/gradle-4.4.1-bin.zip',
     'e7cf7d1853dfc30c1c44f571d3919eeeedef002823b66b6a988d27e919686389'),
    ('https://downloads.gradle.org/distributions/gradle-4.5-bin.zip',
     '03f2a43a314ff0fb843a85ef68078e06d181c4549c1e5fb983f289382b59b5e3'),
    ('https://downloads.gradle.org/distributions/gradle-4.5.1-bin.zip',
     '3e2ea0d8b96605b7c528768f646e0975bd9822f06df1f04a64fd279b1a17805e'),
    ('https://downloads.gradle.org/distributions/gradle-4.6-bin.zip',
     '98bd5fd2b30e070517e03c51cbb32beee3e2ee1a84003a5a5d748996d4b1b915'),
    ('https://dl.google.com/android/ndk/android-ndk-r10e-linux-x86_64.bin',
     '102d6723f67ff1384330d12c45854315d6452d6510286f4e5891e00a5a8f1d5a'),
    ('https://dl.google.com/android/repository/android-ndk-r11c-linux-x86_64.zip',
     'ba85dbe4d370e4de567222f73a3e034d85fc3011b3cbd90697f3e8dcace3ad94'),
    ('https://dl.google.com/android/repository/android-ndk-r12b-linux-x86_64.zip',
     'eafae2d614e5475a3bcfd7c5f201db5b963cc1290ee3e8ae791ff0c66757781e'),
    ('https://dl.google.com/android/repository/android-ndk-r13b-linux-x86_64.zip',
     '3524d7f8fca6dc0d8e7073a7ab7f76888780a22841a6641927123146c3ffd29c'),
    ('https://dl.google.com/android/repository/android-ndk-r14b-linux-x86_64.zip',
     '0ecc2017802924cf81fffc0f51d342e3e69de6343da892ac9fa1cd79bc106024'),
    ('https://dl.google.com/android/repository/android-ndk-r15c-linux-x86_64.zip',
     'f01788946733bf6294a36727b99366a18369904eb068a599dde8cca2c1d2ba3c'),
    ('https://dl.google.com/android/repository/android-ndk-r16b-linux-x86_64.zip',
     'bcdea4f5353773b2ffa85b5a9a2ae35544ce88ec5b507301d8cf6a76b765d901'),
]


def sha256_for_file(path):
    with open(path, 'rb') as f:
        s = hashlib.sha256()
        while True:
            data = f.read(4096)
            if not data:
                break
            s.update(data)
        return s.hexdigest()


def run_via_vagrant_ssh(v, cmdlist):
    if (isinstance(cmdlist, str) or isinstance(cmdlist, bytes)):
        cmd = cmdlist
    else:
        cmd = ' '.join(cmdlist)
    v._run_vagrant_command(['ssh', '-c', cmd])


def update_cache(cachedir, cachefiles):
    for srcurl, shasum in cachefiles:
        filename = os.path.basename(srcurl)
        local_filename = os.path.join(cachedir, filename)

        if os.path.exists(local_filename):
            local_length = os.path.getsize(local_filename)
        else:
            local_length = -1

        resume_header = {}
        download = True

        try:
            r = requests.head(srcurl, allow_redirects=True, timeout=60)
            if r.status_code == 200:
                content_length = int(r.headers.get('content-length'))
            else:
                content_length = local_length  # skip the download
        except requests.exceptions.RequestException as e:
            content_length = local_length  # skip the download
            logger.warn('%s', e)

        if local_length == content_length:
            download = False
        elif local_length > content_length:
            logger.info('deleting corrupt file from cache: %s', local_filename)
            os.remove(local_filename)
            logger.info("Downloading %s to cache", filename)
        elif local_length > -1 and local_length < content_length:
            logger.info("Resuming download of %s", local_filename)
            resume_header = {'Range': 'bytes=%d-%d' % (local_length, content_length)}
        else:
            logger.info("Downloading %s to cache", filename)

        if download:
            r = requests.get(srcurl, headers=resume_header,
                             stream=True, allow_redirects=True)
            content_length = int(r.headers.get('content-length'))
            with open(local_filename, 'ab') as f:
                for chunk in progress.bar(r.iter_content(chunk_size=65536),
                                          expected_size=(content_length / 65536) + 1):
                    if chunk:  # filter out keep-alive new chunks
                        f.write(chunk)

        v = sha256_for_file(local_filename)
        if v == shasum:
            logger.info("\t...shasum verified for %s", local_filename)
        else:
            logger.critical("Invalid shasum of '%s' detected for %s", v, local_filename)
            os.remove(local_filename)
            sys.exit(1)


def debug_log_vagrant_vm(vm_dir, config):
    if options.verbosity >= 3:
        _vagrant_dir = os.path.join(vm_dir, '.vagrant')
        logger.debug('check %s dir exists? -> %r', _vagrant_dir, os.path.isdir(_vagrant_dir))
        logger.debug('> vagrant status')
        subprocess.call(['vagrant', 'status'], cwd=vm_dir)
        logger.debug('> vagrant box list')
        subprocess.call(['vagrant', 'box', 'list'])
        if config['vm_provider'] == 'libvirt':
            logger.debug('> virsh -c qmeu:///system list --all')
            subprocess.call(['virsh', '-c', 'qemu:///system', 'list', '--all'])
            domain = 'buildserver_default'
            logger.debug('> virsh -c qemu:///system snapshot-list %s', domain)
            subprocess.call(['virsh', '-c', 'qemu:///system', 'snapshot-list', domain])


def main():
    global cachedir, cachefiles, config, tail

    if options.skip_cache_update:
        logger.info('skipping cache update and verification...')
    else:
        update_cache(cachedir, cachefiles)

    # use VirtualBox software virtualization if hardware is not available,
    # like if this is being run in kvm or some other VM platform, like
    # http://jenkins.debian.net, the values are 'on' or 'off'
    if sys.platform.startswith('darwin'):
        # all < 10 year old Macs work, and OSX servers as VM host are very
        # rare, but this could also be auto-detected if someone codes it
        config['hwvirtex'] = 'on'
        logger.info('platform is darwnin -> hwvirtex = \'on\'')
    elif os.path.exists('/proc/cpuinfo'):
        with open('/proc/cpuinfo') as f:
            contents = f.read()
        if 'vmx' in contents or 'svm' in contents:
            config['hwvirtex'] = 'on'
            logger.info('found \'vmx\' or \'svm\' in /proc/cpuinfo -> hwvirtex = \'on\'')

    serverdir = os.path.join(os.getcwd(), 'buildserver')
    logfilename = os.path.join(serverdir, 'up.log')
    if not os.path.exists(logfilename):
        open(logfilename, 'a').close()  # create blank file
    log_cm = vagrant.make_file_cm(logfilename)
    v = vagrant.Vagrant(root=serverdir, out_cm=log_cm, err_cm=log_cm)

    if options.verbosity >= 2:
        tail = fdroidserver.tail.Tail(logfilename)
        tail.start()

    vm = fdroidserver.vmtools.get_build_vm(serverdir, provider=config['vm_provider'])
    if options.clean:
        vm.destroy()

    # Check against the existing Vagrantfile.yaml, and if they differ, we
    # need to create a new box:
    vf = os.path.join(serverdir, 'Vagrantfile.yaml')
    writevf = True
    if os.path.exists(vf):
        logger.info('Halting %s', serverdir)
        v.halt()
        with open(vf, 'r', encoding='utf-8') as f:
            oldconfig = yaml.load(f)
        if config != oldconfig:
            logger.info("Server configuration has changed, rebuild from scratch is required")
            vm.destroy()
        else:
            logger.info("Re-provisioning existing server")
            writevf = False
    else:
        logger.info("No existing server - building from scratch")
    if writevf:
        with open(vf, 'w', encoding='utf-8') as f:
            yaml.dump(config, f)

    if config['vm_provider'] == 'libvirt':
        found_basebox = False
        needs_mutate = False
        for box in v.box_list():
            if box.name == config['basebox']:
                found_basebox = True
                if box.provider != 'libvirt':
                    needs_mutate = True
                continue
        if not found_basebox:
            if isinstance(config['baseboxurl'], str):
                baseboxurl = config['baseboxurl']
            else:
                baseboxurl = config['baseboxurl'][0]
            logger.info('Adding %s from %s', config['basebox'], baseboxurl)
            v.box_add(config['basebox'], baseboxurl)
            needs_mutate = True
        if needs_mutate:
            logger.info('Converting %s to libvirt format', config['basebox'])
            v._call_vagrant_command(['mutate', config['basebox'], 'libvirt'])
            logger.info('Removing virtualbox format copy of %s', config['basebox'])
            v.box_remove(config['basebox'], 'virtualbox')

    logger.info("Configuring build server VM")
    debug_log_vagrant_vm(serverdir, config)
    try:
        v.up(provision=True)
    except subprocess.CalledProcessError:
        debug_log_vagrant_vm(serverdir, config)
        logger.error("'vagrant up' failed, is the base box missing?")
        sys.exit(1)

    if config['copy_caches_from_host']:
        ssh_config = v.ssh_config()
        user = re.search(r'User ([^ \n]+)', ssh_config).group(1)
        hostname = re.search(r'HostName ([^ \n]+)', ssh_config).group(1)
        port = re.search(r'Port ([0-9]+)', ssh_config).group(1)
        key = re.search(r'IdentityFile ([^ \n]+)', ssh_config).group(1)

        for d in ('.m2', '.gradle/caches', '.gradle/wrapper', '.pip_download_cache'):
            fullpath = os.path.join(os.getenv('HOME'), d)
            if os.path.isdir(fullpath):
                ssh_command = ' '.join(('ssh -i {0} -p {1}'.format(key, port),
                                        '-o StrictHostKeyChecking=no',
                                        '-o UserKnownHostsFile=/dev/null',
                                        '-o LogLevel=FATAL',
                                        '-o IdentitiesOnly=yes',
                                        '-o PasswordAuthentication=no'))
                # TODO vagrant 1.5+ provides `vagrant rsync`
                run_via_vagrant_ssh(v, ['cd ~ && test -d', d, '|| mkdir -p', d])
                subprocess.call(['rsync', '-ax', '--delete', '-e',
                                 ssh_command,
                                 fullpath + '/',
                                 user + '@' + hostname + ':~/' + d + '/'])

        # this file changes every time but should not be cached
        run_via_vagrant_ssh(v, ['rm', '-f', '~/.gradle/caches/modules-2/modules-2.lock'])
        run_via_vagrant_ssh(v, ['rm', '-fr', '~/.gradle/caches/*/plugin-resolution/'])

    p = subprocess.Popen(['git', 'rev-parse', 'HEAD'], stdout=subprocess.PIPE,
                         universal_newlines=True)
    buildserverid = p.communicate()[0].strip()
    logger.info("Writing buildserver ID ...ID is %s", buildserverid)
    run_via_vagrant_ssh(v, 'sh -c "echo %s >/home/vagrant/buildserverid"' % buildserverid)

    logger.info("Stopping build server VM")
    v.halt()

    logger.info("Packaging")
    boxfile = os.path.join(os.getcwd(), 'buildserver.box')
    if os.path.exists(boxfile):
        os.remove(boxfile)

    vm.package(output=boxfile)

    logger.info("Adding box")
    vm.box_add('buildserver', boxfile, force=True)

    if 'buildserver' not in subprocess.check_output(['vagrant', 'box', 'list']).decode('utf-8'):
        logger.critical('could not add box \'%s\' as \'buildserver\', terminating', boxfile)
        sys.exit(1)

    if not options.keep_box_file:
        logger.debug('box added to vagrant, ' +
                     'removing generated box file \'%s\'',
                     boxfile)
        os.remove(boxfile)


if __name__ == '__main__':
    try:
        main()
    finally:
        if tail is not None:
            tail.stop()
